Protocol & Consensus • Estimated 85m

SIGHASH_ANYPREVOUT

protocol.anyprevout

ANYPREVOUT changes signature commitment semantics so updates can bind less history. It is a key enabler for eltoo-style channel update protocols.

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Curated resources (3)

• Covenants.info Proposal: ANYPREVOUT (article) Proposal framing and relation to other covenant primitives.
• Bitcoin Optech Topic: SIGHASH_ANYPREVOUT (article) Implementation and deployment considerations.
• BIP 118 Draft (article) Specification draft for ANYPREVOUT signature flags.

Direct prerequisites (2)

• SIGHASH Flags
• Taproot

Direct dependents (1)

• Eltoo Channel Updates

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